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SLA for Azure SQL Database

Last updated: July 2019

Azure SQL Database is a fully managed relational database with built-in regional high availability and turnkey geo-replication to any Azure region. It includes intelligence to support self-driving features such as performance tuning, threat monitoring, and vulnerability assessments and provides fully automated patching and updating of the code base.

  • Azure SQL Database Business Critical or Premium tiers configured as Zone Redundant Deployments have an availability guarantee of at least 99.995%.
  • Azure SQL Database Business Critical or Premium tiers not configured for Zone Redundant Deployments, General Purpose, Standard, or Basic tiers, or Hyperscale tier with two or more replicas have an availability guarantee of at least 99.99%.
  • Azure SQL Database Hyperscale tier with one replica has an availability guarantee of at least 99.95% and 99.9% for zero replicas.
  • Azure SQL Database will experience an average Geo-Replication Lag of less than 5 seconds for any Business Critical tier database configured with geo-replication for 100% of deployed hours.
  • Azure SQL Database will be recovered in less than 30 seconds of an Unplanned Failover for any Business Critical tier database configured with geo-replication 100% of the time.

Version History

1.4 Last updated: July 2019

1.3 Last updated: July 2019
Release notes: Expanded SLA to include guarantees for RPO and RTO. Addition of guarantees for availability <95%.

1.2 Last updated: May 2019
Release notes: Expanded SLA to cover Business Critical, Premium, and Hyperscale tiers of SQL Database. Removed references to Web and Business Tiers, since they have been retired.

1.1 Last updated: May 2016
Release notes: Revised to reflect the general availability of Elastic Database on 5/1/2016

1.0 Last updated: May 2015